Aircraft and concealed stanchion for same



Oct. 4, 1932. SIK R KY 1,881,141

AIRCRAFT AND CONCEALED STANCHION FOR SAME Filed June 5. 1929 3 Sheets-Sheet 1 ATTORNE Oct. 4, 1932. l. SIKORSKY 1,881,

AIRCRAFT AND CONCEALED STANCHION FOR SAME Filed June 5, 1929 3 Sheets-Sheet 2 ENTOR ATTORNE.

4, 1 l. SIKORSKY 1,881,141

AIRCRAFT AND CONCEALED STANCHION FOR SAME Filed June 5, 1929 3 Sheets-Sheet 5 I \Q k) 1 04? 52/025); g u} 1) INVENTOR BY Z i 7 ATTORNEY Patented Oct. 4, 1 932 ime: srArEs PATENT? oFFIcE reonsrKoR-s Y, or 'ootnncsrn IPOI1 TT,; NEW YORK, ASSIGNOR T sI-Kon-sKY AVIATION CORPORATION, or wrnmrneron, DELAWARE, A conrone'rron or DELAWARE AIRCRAFT AND'VCONCEALED STANCHION non SAME i Applicationfiled June 5, 1929. Serial No. 368,553.

1 '7 The present invention relates to improveinents in aircraft andhas to do particularly gthe aircraftand when not in use to be.

collapsed so as to present no wind resistance. While the invention hasto do with aircraft r "in general, it has particular application to machines of theflandgwater-air type, commonly known asamph'ibians, and-accordr ingly I have illustrated itin the accompanyin'g drawings in connection withthat type of machine. Z

' Inthe drawings: p 7 v 15 Figure 'l' i's planiview of the amphibian.

'P' -Figure 2 is a front elevation of the-amphibian. Y I Figure 8 is a side'elevation of the "same.

7 Figure 4: is an elevation, with parts broken away, of therear portion of the: amph bian body-boat. v

Figure '5 is a plan view of of the body-boat f Figure 6is anelevation of the stanchion and its suppo'rting means. V

Figure 7 is an' enlarged view of thei'stanchionand.itssupporting means.

Fi gure 8gi s"a View of the amphibian seen in the direction'of the arrows 88, Figure 7.

Figure 9 isa vie'w of the stanchion and its i supporting means when in the direction of thearrows 99 of Figure 7 Y Figure 10 is a section on line 105 10 of Figure 1-1 is a section on line 1111 of Figure 7, and

' Figure 12 is an elevation of the stanchion andits supporting means, the stanchionbei ing, in itslower' position.

" Referring to the drawings, lO 'in'dicate's a body-boatflprovided withan aft platform 11 and hatches 12 and 18. A main-plane 14 extends above 'the body-boat and lower wings 15 and 16project laterally of the body-boat, these being suitably connected with'the main A plane through interplane struts. Each of the lower planes supports nearits outer end a pontoon such el"? and 18.

I An empennage 19 is supportedat the rear 50 ward en'ds of Outriggers 20 and '21'which prothe same portion" ject from the main plane in symmetrical rela- -tion to the longitudinal axis of the body-boat. Motors. 22 and 28 are suspended from the main wing forwardly thereof in line with Outriggers 20 and 21.

I In order that the machine may be brought to rest on the ground, landing wheels 24- and 25 are provided, these being movable through suitable mechanism from the fullline position of Figure 2 to the dotted line position.

A tail skid 26 is adapted tocooperate with the landing wheels.

. i The: fore part of the body-boat is taken up by water-tight compartments which underlie'hatc'hes 27', 28 and 29. 1 The pilots com" 'partment is arranged next to the most rearward compartment and beyond the pilots compartment is a passenger compartment 80 of which the rear portion is visible in Figures 4 and 5. Access is had to the passenger compartment by means of external steps 81, 82, platform 11 and an internal demountable ladder 88. As here shown, step 81 is partially supported by means ofa bowed rod 84 which serves the other functions of hand rail and bumper.

Arranged adjacent platform 11 sons to be within convenient reach of one entering or leaving the boat is'a disappearing stanchion 85, this being shown in detail in Figures 6 to 12.

The stanchion is preferably a tubular member mounted for sliding movement in a tubular guide member 86 which forthe' sake of lightness-may be provided with suitable cutouts. Member 86 is secured at its upper end, as by welding, to a combined bracket and fitting comprising upper and lower plates 87 and-88, an intermediate block 89 and an angle member 40 secured to a bodyboat structural member 41'. The lower end of member 8'6is similarly secured in an aperture in a bracket comprising a plate 42 and an angle member 48 likewise secured to memher 41'. In this manner member 86 is rigidly secured in vertical position.

Stanchion 85 is provided at its upper end With a cap 4 1 which is secured in place by means of a pin 452 c To the lower end of the stanchion a ring l6 having an upper bevelled surface is secured by means of a pin 4'? Cap 441s of such shape as to be readily graspedin order to lift the stanchion to operative position and 1t also serves to limit the downward movement of the stanchion through contactwith the upper end of .member 38 or with plate37 if the margins of the aperture v inthe latter overlie the upper edges of mem her 36 as is the case in'Figure 7.- Ring 46 the friction between. the stanchion and tubu lar guide member 36,b ush1ngs 48 and49 may be secured 1n the ends of the latter.

; Secured tothe underside of plate 42 adja cent the stanchion is a box-like frame 50 in whichis slidable a latch 51 on a line substan- I tially radial-to the stanchion. The forward I end of the plunger is expanded to form a sub-1 V stantially triangular head into slot 52 of latchhl. .Plunger 55-is norportion of the latch is of rectangular section:

and is guided in a rectangular aperture in a wall offrame 50, thuspreventing rotation of 'thelatchabout its longitudinal axis. 7

-:The'rear cylindrical end of the'latch isguided in a suitable aperture in the opposite j lwallof memberf50. The forward portionof the latch is provided with a through slot 452. 7 across which extends a pin 58. 'Ihelzn'ose ofthe latchis downwardly bevelled and is urged toward the stanchionby a s'pring54 inter-. posed between the enlarged forward portionof'the latch and the adjacent wall'of'frame 50.

A pin or plunger55 is slidabl parallel'to stanchion in suitable apertures in the above;

' lnGl'llJlOIlEd brackets; Atthe upper end of the, I

.gu1deway, a stanchion slldable misaid guldeplunger is secured ahead 56 while thelower which projects mally yieldably maintained i'n the position of-Figures 6 andlQ and the dotted line position of Figure'Z, by means :of a springv 58 in terposedjbetweenplate 42 and a washer 59 surrounding'the plunger and held against." upwarddisplacementrelative thereto 'by a. pinGOQ" a" WVhe'n the stanchionis tobe used-,it is only necessary to grasp cap 44 andi'pull the stein-1 ehionj upwardly. As the stanchion moves 'upwardlyring 46 eventually strikesthe nose] .oflatch which temporarily yields and then springs back into position below the stanchion retaining the latter-securelyinthe extate'to its lower-position;asshovvn in Figure Ring46 it willbe njoted is adapted to co- 1 operate withlatch defy.

51 throughout its periph- 'outs'id I 7 p 7 tion w1th1n said a rcraftits purpose,'

It is to be understood that the described 7 and I do not limit myself to structureexcept as stated in the following claims."

I claim: 7

1'. In aircraft construction a'- stanchionslidable in a guideway, said stanchion being slidable from an extended operative position ofsaid aircraft to a concealed posi- 2. In aircraft construction a slidable stan- 'chion having 'meansassociated therewith for locking saidstanchion in its extended position, said stanchion beingfslidablefrom an extended operative'cpositionoutside of said aircraft to a concealed position Within said aircraft.r

. A slidablestanchion for aircraft, said stanchion being slidable from (an extended operative position outside of said aircraftto: a'conceal'edposition within sa d aircraft.

4. In aircraft construction aslidable stanchion provided at itsupper end with, means for graspingsaidstanchion manually and; sliding same, said StHJlClllOIl be ngslldable from an extended operatlve posltion OUtSldQ- of said aircraft to a concealed'position within said aircraft.

' 5. In an" aircraft, vertically disposed the stanchion in its upper position;

6.}In5ai1 aircraft, a'vertically disposed 'gu'ideway, a stanchion slidable in said guide wayfrom a lower to an upper portion orway from alower to an upper position or V vice versa,'means for lockingthestanchionin its upper position, and manually operable means for releasing said lockingmeans' to permit thestanehion to gravitate-to its-lower position.

7 In an alrcraft, a vertically disposed I guideway, a stanchionslidablein-said guideway from a lower to an upper positionor vice versa, means for locking the stanchion I in its upper position, and manually operable meansslidable in a direction parallel to the V 8. In an aircraft, a vertically disposed guideway including vertically spaced perforated brackets, astanchionslidable in the perforations of said brackets from a lower to an upper position or vice versa, and means inconnection with one of the brackets for releasabl'y lockingthe stanchionin its upper position. I .e 7. 4 9.'In an-- aircraft,a vertically disposed guideway including vertically spaced perforated brackets, a stanchion slidable in the perforations of said bracketsfrom a lower to-an upper position -or vice versa, means in connection w th one of the brackets for lOCk',

ing the stanchion in its upper position, and

means guided in both of the brackets for releasing said locking means. V

10. In an aircraft, a vertically disposed guideway, a stanchion slidable in said guideway from a lower to an upper position or vice versa, a latch slidable transversely of the'stanchion for engaging and retaining it 7 in its upper position, and means slidable tubular, guide member,

parallel to thestanchion for withdrawing said latch to permit the stanchion to gravitate to its lower position.

11. In an aircraft, a vertically disposed a stanchion slidable in said guide member from a lower to an upper position or vice versa, said stanchion having end enlargements cooperating with the ends of said guide member to limit its sliding movements, and means for arresting said stanchion in its upper position.

12. In an aircraft, a vertically disposed tubular guide member, a stanchion slidable in said guide member from a lower to an upper position or vice versa, said stanchion having end enlargements cooperating with the ends of said guide member'to limit its sliding movements, and a latch adapted to engage under the lower enlargement to arrest the stanchion in its upper position.

13. In an aircraft, a vertically disposed tubular guide member, a stanchion slidable in said guide member from a lower to an upper position or vice versa, said stanchion having end enlargements cooperating with the ends of said guide member to limit its sliding movements, and a spring pressed latch a to engage under the lower enlargement to of said arrest the stanchion in its upper position.

14. In an aircraft, a vertically disposed tubular guide member, a stanchion slidable in said guide member from a lower to an I upper position or vice versa, means limiting the sliding movements of said stanchion, a spring pressed latch projecting transversely stanchion and'adapted to engage the latter to retain it in its upper position, a plunger slidable parallel to the stanchion, said plunger having a cam face adapted upon depression of the plunger to engage the latch to withdraw it from engagement with the stanchion, and yieldable means opposing the depression of said plunger.

15. In aircraft construction a slidable stanchion and a guideway in which said stanchion is adapted to slide from an exposed to a concealed position and/or from a concealed to an exposed position.

Signed at College Point, Long Island, in the county of Queens and State of New York, this 30th day of April, A. D. 1929.

IGOR SIKORSKY. 

